SH7108 Datasheet, PDF (292/560 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

Section 8 Multifunction Timer Pulse Unit (MTU)
(27) Operation when Error Occurs during Reset-Synchronous PWM Mode Operation, and
Operation is Restarted in PWM Mode 1
Figure 8.110 shows an explanatory diagram of the case where an error occurs in reset-synchronous
PWM mode and operation is restarted in PWM mode 1 after re-setting.
MTU module
output
TIOC3A
1
2
3
4
RESET TOCR TMDR TOER
(RPWM) (1)
5
PFC
(MTU)
6
TSTR
(1)
7
8
9
10
11
12
Match Error PFC TSTR TMDR TIOR
occurs (PORT) (0) (PWM1) (1 init
0 out)
13
PFC
(MTU)
14
TSTR
(1)
TIOC3B
• Not initialized (TIOC3B)
TIOC3D
• Not initialized (TIOC3D)
Port output
PE8
Hi-Z
PE9
Hi-Z
PE11
Hi-Z
Figure 8.110 Error Occurrence in Reset-Synchronous PWM Mode,
Recovery in PWM Mode 1
1 to 10 are the same as in figure 8.109.
11. Set PWM mode 1. (MTU positive phase output is low, and negative phase output is high.)
12. Initialize the pins with TIOR. (In PWM mode 1, the TIOC *B side is not initialized.)
13. Set MTU output with the PFC.
14. Operation is restarted by TSTR.
Rev.1.00 Sep. 18, 2008 Page 258 of 522
REJ09B0069-0100